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Chemical structures of actinosporin C (10), actinosporin D (11), saadamycin (12), lyngbyatoxin A (13), debromoaplysiatoxin (14), 3,6-diisobutyl-2(1H)-pyrazinone (15), chrysophanol 8-methyl ether (16), asphodelin (17), justicidin B (18), ayamycin (19) and fridamycin H (20).
